[ncl-talk] Opacity for above and below 0 line filled index

[Rick Brownrigg]

HI,

I don't know offhand, but have you tried setting the
Above/BelowYRefLineColor resources to an RGBa tuple? Ex:

res at gsnAboveYRefLineColor = (/1., 0., 0., 0.3/)     ; "red" with opacity
0.3
res at gsnBelowYRefLineColor = (/0., 0., 1., 0.3/)     ; "blue"  "
"        "

Hope that helps. If not, and if you can share your script, I'll look
further into it (you can send it directly to me).

Rick

On Sun, Oct 29, 2017 at 10:41 AM, Ioana Colfescu <ioana.colfescu at ncas.ac.uk>
wrote:

> Hi,
> I created the attached plot and I'd like to change the opacity of the blue
> and the red colors in it.
> I tried the suggestions I found online at https://www.ncl.ucar.edu/
> Applications/rgbacolor.shtml ( ttied changing cnFillOpacityF
> vcGlyphOpacityF, stLineOpacityF, gsFillOpacityF , gsLineOpacityF,
> gsMarkerOpacityF, txFontOpacityF) but I did not get any change yet.
> Does anyone know what the correct option I should use is ?
> The relevant part of my code is below and the plot is attached.
> Thanks,
> Ioana
>
> res at gsnYRefLine      = 0.0
> res at xyLineThicknessF = 3.0
> res at gsnAboveYRefLineColor = "red"
> res at gsnBelowYRefLineColor = "blue"
> ;res at gsnXYFillOpacities = (/0.3,0.3,1.0/)
> plot(0)  = gsn_csm_xy (wks,year, amoAnnSmth ,res)
>
>
> *Ioana Colfescu  *
> Research Scientist
> National Centre for Atmospheric Science
> School of Earth and Environment
> University of Leeds
>
>
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